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T
Tourette Syndrome
Tourette Syndrome (TS) is a neurological disorder characterized by tics -- involuntary, rapid, sudden movements or vocalizations that occur repeatedly in the same way. Diagnostic criteria include:
Both multiple motor and one or more vocal tics present at some time, although not necessarily simultaneously;
The occurrence of tics many times a day (usually in bouts) nearly every day or intermittently throughout the span of more than one year;
Periodic changes in the number, frequency, type and location of the tics, and in the waxing and waning of their severity. Symptoms can sometimes disappear for weeks or months at a time;